I could umber you could umber she could umber we could umber you could umber they could umber
Forme en V-ing
I could be umbering you could be umbering she could be umbering we could be umbering you could be umbering they could be umbering
Perfect
I could have umbered you could have umbered she could have umbered we could have umbered you could have umbered they could have umbered
Perfect en V-ing
I could have been umbering you could have been umbering she could have been umbering we could have been umbering you could have been umbering they could have been umbering
Négation
Forme simple
I couldn't umber you couldn't umber she couldn't umber we couldn't umber you couldn't umber they couldn't umber
Forme en V-ing
I couldn't be umbering you couldn't be umbering she couldn't be umbering we couldn't be umbering you couldn't be umbering they couldn't be umbering
Perfect
I couldn't have umbered you couldn't have umbered she couldn't have umbered we couldn't have umbered you couldn't have umbered they couldn't have umbered
Perfect en V-ing
I couldn't have been umbering you couldn't have been umbering she couldn't have been umbering we couldn't have been umbering you couldn't have been umbering they couldn't have been umbering
Forme interrogative
Forme simple
could I umber? could you umber? could she umber? could we umber? could you umber? could they umber?
Forme en V-ing
could I be umbering? could you be umbering? could she be umbering? could we be umbering? could you be umbering? could they be umbering?
Perfect
could I have umbered? could you have umbered? could she have umbered? could we have umbered? could you have umbered? could they have umbered?
Perfect en V-ing
could I have been umbering? could you have been umbering? could she have been umbering? could we have been umbering? could you have been umbering? could they have been umbering?
Forme interro-négative
Forme simple
couldn't I umber? couldn't you umber? couldn't she umber? couldn't we umber? couldn't you umber? couldn't they umber?
Forme en V-ing
couldn't I be umbering? couldn't you be umbering? couldn't she be umbering? couldn't we be umbering? couldn't you be umbering? couldn't they be umbering?
Perfect
couldn't I have umbered? couldn't you have umbered? couldn't she have umbered? couldn't we have umbered? couldn't you have umbered? couldn't they have umbered?
Perfect en V-ing
couldn't I have been umbering? couldn't you have been umbering? couldn't she have been umbering? couldn't we have been umbering? couldn't you have been umbering? couldn't they have been umbering?